Dynamic Tuning of Photoluminescent Dyes in Crystalline Colloidal Arrays

Authors

  • J. R. Lawrence,

    1. Center for Optical Materials Science and Engineering Technologies, School of Materials Science and Engineering, Clemson University, Clemson, SC 29634-0971, USA
    Search for more papers by this author
  • G. H. Shim,

    1. Center for Optical Materials Science and Engineering Technologies, School of Materials Science and Engineering, Clemson University, Clemson, SC 29634-0971, USA
    Search for more papers by this author
  • P. Jiang,

    1. Center for Optical Materials Science and Engineering Technologies, School of Materials Science and Engineering, Clemson University, Clemson, SC 29634-0971, USA
    Search for more papers by this author
  • M. G. Han,

    1. Center for Optical Materials Science and Engineering Technologies, School of Materials Science and Engineering, Clemson University, Clemson, SC 29634-0971, USA
    Search for more papers by this author
  • Y. Ying,

    1. Center for Optical Materials Science and Engineering Technologies, School of Materials Science and Engineering, Clemson University, Clemson, SC 29634-0971, USA
    Search for more papers by this author
  • S. H. Foulger

    1. Center for Optical Materials Science and Engineering Technologies, School of Materials Science and Engineering, Clemson University, Clemson, SC 29634-0971, USA
    Search for more papers by this author

  • The authors thank DARPA (grant no. N66001-04-1-8933) and the National Science Foundation through a CAREER award (grant no. DMR-0236692) (SHF) for financial support.

Abstract

original image

Real-time tuning of the emission characteristics of a dye encapsulated in a colloidal crystal through in-situ modification of the rejection wavelength is demonstrated. Mechanochromic tuning is used to modify the emission spectra of hydrogel-encapsulated crystalline colloidal arrays composed of electrostatically self-assembled monodisperse polystyrene particles coated with the photoluminescent dye Rhodamine-B, as shown in the Figure.

Ancillary